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Product Details:
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| Color: | Transparent / Fluorescent Trace Available | Viscosity (25 Deg C): | 40,000 ± 10,000 MPa·s |
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| Curing Condition: | 1200 MJ/cm² | Hardness: | Shore D 75 |
| Glass Transition Temperature: | Tg 27 Deg C | Shelf Life: | 12 Months At 8-28 Deg C |
| Packaging: | 1 Kg | Application: | Bonding Plastics To Metals, Injection Needle Hub Fixation |
| Highlight: | transparent silicone fixing adhesive,high-viscosity UV glue,UV cure adhesive for LED lens |
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Product Description
Our 3730 UV curing silicone fixing adhesive is specially engineered for optical lens bonding, TV backlight assemblies, and small component sealing. Featuring exceptional elasticity, high viscosity, superior weatherability, and strong impact resistance, it delivers long-term structural reliability under severe environmental stress.
High Viscosity (40,000 mPa·s): Excellent gap-filling capability without sagging or slumping.
High Elasticity & Toughness: Absorbs mechanical shock, vibration, and thermal expansion stress.
Superior Weatherability: Outstanding resistance to UV degradation, aging, and temperature fluctuations.
Exceptional Mechanical Properties: Strong peel strength and durable adhesion to PMMA, PC, glass, and metals.
High Dielectric Strength: Reliable electrical insulation (25 kV/mm) for delicate electronic optics.
LED Backlight Lens Bonding: Precision positioning and fixing of optical lenses in TVs and displays.
Diffuse Reflection Light Bars: Bonding acrylic and PC lenses on linear LED strip modules.
Optical Components: Bonding side-lit lens arrays and specialized LED fixture modules.
Precision Component Sealing: Structural bonding and sealing of micro-electronic and optical sub-assemblies.
| Property / Parameter | Specification Value |
| Color / Appearance |
Amber Transparent |
| Viscosity (25°C) |
40,000 ± 10,000 mPa·s |
| Curing Condition |
1200 mJ/cm² (UV Light) |
| Hardness (Shore D) |
75 |
| Glass Transition Temperature (Tg) |
27°C |
| Dielectric Strength |
25 kV/mm |
| Shelf Life |
12 months at 8–28°C |
| Standard Packaging |
1 kg / bottle |
Standard Packaging: 1 kg bottle. Custom syringe packaging available for automated production lines upon request.
Storage & Handling: Store at 8–28°C in a cool, dry place away from direct sunlight. Keep containers tightly closed when not in use.
Q1: How does 3730 silicone fixing adhesive cure?
A: It cures under UV irradiation with a recommended cumulative UV light dose of 1200 mJ/cm². Actual curing time depends on lamp power, UV intensity, and layer thickness.
Q2: Why is high viscosity (40,000 mPa·s) important for LED lens bonding?
A: The high viscosity ensures the adhesive stays precisely where dispensed without slumping or flowing into unintended optical zones before UV light curing.
Q3: What optical substrates can 3730 bond?
A: It offers outstanding adhesion to common optical plastics such as PMMA (acrylic) and PC (polycarbonate), as well as glass substrates and metal PCB heat sinks.
Q4: How does 3730 handle thermal and mechanical shock?
A: Thanks to its high elasticity, excellent peel strength, and Tg of 27°C, 3730 cushions impact and accommodates differential thermal expansion between plastic lenses and aluminum PCBs.
Q5: What is the shelf life and proper storage condition?
A: The product maintains a 12-month shelf life when stored in original unopened containers at 8–28°C in a dark, dry environment.
Q6: Can 3730 be supplied in custom packaging for automated dispensing lines?
A: Yes, while 1 kg bottles are standard, custom syringe cartridges can be provided for automated needle dispensing and high-precision assembly lines.
Contact Person: Eric Hu
Tel: 0086-13510152819
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